📋 Tender Overview
The Geological Agency of the Ministry of Energy and Mineral Resources ESDM has raised the status of Mount Semeru Lumajang Regency East Java from Level II Alert to Level III Alert starting on December 16 2021 at 2300.Considering that the activity of the Semeru Volcano is still high and there has been an increase in the sliding distance of hot avalanches and lava flows the Geological Agency stated that the Semeru Volcanos Activity Level has been increased from the WASPADA level Level II to STANDARD Level III starting on December 16 2021 at 2300 WIB said Head of the Geological Agency Eko Budi Lelono Thursday 1612 night.Therefore the Geological Agency appealed to the public not to carry out any activities in the southeast sector along Besuk Kobokan as far as 13 kilometers km from the summit. Beyond this distance the community does not carry out activities within 500 meters of the riverbank river border along Besuk Kobokan because of the potential for expansion of hot clouds and lava flows up to a distance of 17 km from the summit.In addition the public should not enter and should not be active within a radius of 5 km from the craterpeak of the Semeru Volcano because it is prone to the danger of stone throwing incandescent added Eko.Previously on Thursday 1612 there was a hot cloud slide at 09.01 WIB as far as 4.5 kilometers from the peak. This hot cloud incident was recorded on a seismograph with a maximum amplitude of 25 mm and a duration of 912 seconds. Then there was a hot cloud slide at 0930 WIB. This hot cloud incident was recorded on a seismograph with a maximum amplitude of 17 mm and a duration of 395 seconds but was not visually observed because Mount Api Semeru was covered in fog. In the afternoon there was a hot cloud slide at 1542 WIB as far as 4.5 km from the peak. This hot cloud incident was recorded on a seismograph with a maximum amplitude of 20 mm and a duration of 400 seconds.In addition from seismic observations it is observed that seismicity is dominated by Eruption Blowing and Avalanche earthquakes with the number of Avalanche earthquakes increasing in the last three days by 15-73 events per day from an average of 8 events per day since December 1 2021. Earthquake Deep Volcanic and Harmonic Tremors occur in insignificant amounts explained Eko.Avalanche hot cloud activity still has the potential to occur due to the presence of lava flow deposits lava tongue with a flow length of -2 km from the center of the eruption. The lava flow is still unstable and has the potential for landslides especially at the end of the flow so that it can cause hot clouds to fall.In addition to the potential for hot clouds to occur the potential for lava flows is still high given the fairly high rainfall in Semeru Volcano. Supported by data from BMKG it is estimated that the rainy season will continue for the next 3 months. Secondary explosions also have the potential to occur along river flows if Hot cloud slides that occur entercontact with river water added Eko.The Geological Survey urges the public toComplying with the recommendations issued by the Geological Agency through the Center for Volcanology and Geological Hazard MitigationDo not carry out any activity in the southeast sector along Besuk Kobokan as far as 13 km from the summit the center of the eruption. Beyond this distance the community does not carry out activities within 500 meters of the riverbank river border along Besuk Kobokan because of the potential for expansion of hot clouds and lava flows up to a distance of 17 km from the summit.Do not move within a 5 Km radius from the craterpeak of Mount Semeru because it is prone to the danger of throwing stones incandescentBe aware of potential hot cloud avalanches APG lava avalanches and lahars along riversvalleys that originate at the summit of Mount Api Semeru especially along Besuk Kobokan Besuk Bang Besuk Kembar and Besuk Sat as well as potential lahars in small rivers which is a tributary of Besuk Kobokan.The public is also advised not to be provoked by irresponsible news regarding the activities of the Semeru Volcano and to follow directions from the authorized agency namely the Geological Agency which will continue to coordinate with BNPB and KL Regional Government and other relevant agencies. Information regarding the latest Semeru Volcano activity can be obtained through the Magma Indonesia applicationwebsite www.vsi.esdm.go.id or magma.esdm.go.id and PVMBG social media Facebook Twitter and Instagram pvmbg. DKD
